What is GHSA-w3mh-jmwv-56f3?

GHSA-w3mh-jmwv-56f3 is a security advisory published by GitHub Security Advisories with High severity. Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to...

Which CVE IDs does GHSA-w3mh-jmwv-56f3 cover?

GHSA-w3mh-jmwv-56f3 covers the following CVE IDs: CVE-2026-45659. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-w3mh-jmwv-56f3?

GHSA-w3mh-jmwv-56f3 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-w3mh-jmwv-56f3HighCVSS 8.8

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to...

Vendor

GitHub Security Advisories

Published

May 26, 2026

Last Modified

May 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-45659 →

📋 Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-45659
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659
https://github.com/advisories/GHSA-w3mh-jmwv-56f3